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A118095 Number of unrooted regular odd-valent planar maps with 8 vertices; maps are considered up to orientation-preserving homeomorphisms and the vertices are of valency 2n+1. 0
0, 191, 39670362, 4742588317460, 457373823022288900, 39758207592119720043060, 3253001744463113558023410456, 255859318139167527752722081113072 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

There is a closed formula.

LINKS

Z. C. Gao, V. A. Liskovets and N. C. Wormald, Enumeration of unrooted odd-valent regular planar maps

CROSSREFS

Cf. A112946.

Sequence in context: A207218 A185716 A084003 * A155843 A187527 A187698

Adjacent sequences:  A118092 A118093 A118094 * A118096 A118097 A118098

KEYWORD

nonn

AUTHOR

Valery A. Liskovets (liskov(AT)im.bas-net.by), Apr 13 2006

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Last modified February 17 06:27 EST 2012. Contains 205998 sequences.